Bulova 10AN working movements & parts are fairly easy to find on eBay and they come in 4 different flavours; 7, 15, 17 & 21 jewels. All of which are interchangeable with each other so it means a relatively cheap & easy upgrade as well as additional parts if needed Dial looks to be in good nick as does the case. It's probably one i would take a flyer on.
Also, I'll look thru my spare parts and see if i have a stem & crown that works with that movement.
Also, I'll look thru my spare parts and see if i have a stem & crown that works with that movement.